Name mangling bug: was samba bug?

[James Nord]

Don,

I read around and found this is one of those "exceptionally well 
documented" microsft API things ;-)
ie windows will ignore all trailing dots on a file..

Samba also mangles the name "hello\ooo"
*but* something happens that *only* the magled name is shown

(samba realises it is an illegal name?)

H:\temp\samba>dir /x
 Volume in drive H is homes_inh
 Volume Serial Number is 1205-4BBA

 Directory of H:\temp\samba

2001/09/27  09:38       <DIR>                          .

2001/09/26  17:21       <DIR>                          ..

2001/09/26  15:29       <DIR>                          HELLO~O0

2001/09/27  09:37       <DIR>          FOO~0R          foo...

2001/09/27  09:38       <DIR>          THISN~RC        this needs mangling

               0 File(s)              0 bytes
               5 Dir(s)   5 557 452 800 bytes free

teilo at fury.cdt.luth.se samba > ls
foo.../               hello\ooo/            this needs mangling/

using smbclient
smb: \temp\samba\> ls

  .                                   D       0  Thu Sep 27 09:38:51 2001

  ..                                  D       0  Wed Sep 26 17:21:15 2001

  HELLO~O0                            D       0  Wed Sep 26 15:29:22 2001

  foo...                              D       0  Thu Sep 27 09:37:52 2001

  this needs mangling                 D       0  Thu Sep 27 09:38:51 2001

                33273 blocks of size 4194304. 1325 blocks available

Would it be possible for samba - in the case where it is talking to a MS 
windows SMB/CIFS implemtation return only the mangled name of a file if 
it ends in one or more dots (and its not . or ..)?

/James

MCCALL,DON (HP-USA,ex1) wrote:

>Hi James;
>
>Well, "should" is such a relative concept... ;->
>But looking at a log level 10, we can see that samba is indeed mangling
>foo...
>  
>[2001/09/26 11:23:58, 5] smbd/trans2.c:(447)
>  get_lanman2_dir_entry found ./foo... fname=foo...
>[2001/09/26 11:23:58, 5] smbd/mangle.c:(989)
>  name_map_mangle( foo..., need83 = FALSE, cache83 = TRUE, 1 )
>[2001/09/26 11:23:58, 5] smbd/mangle.c:(1024)
>  name_map_mangle() ==> [foo...]
>[2001/09/26 11:23:58, 5] smbd/mangle.c:(338)
>  Checking foo... for 8.3
>[2001/09/26 11:23:58, 5] smbd/mangle.c:(989)
>  name_map_mangle( foo..., need83 = TRUE, cache83 = TRUE, 1 )
>[2001/09/26 11:23:58, 5] smbd/mangle.c:(338)
>  Checking foo... for 8.3
>[2001/09/26 11:23:58, 5] smbd/mangle.c:(871)
>  Mangling name FOO... to FOO~0R
>[2001/09/26 11:23:58, 5] smbd/mangle.c:(1024)
>  name_map_mangle() ==> [FOO~0R]
>
>
>And in fact, if you go into a command prompt window, and type 
>
>dir k: /x  (where k: is mapped to the share that contains the directory
>foo..)
>you will see the mapped name along with the 'real' name.
>you can then type 
>dir k:\FOO~0R
>
>and you will get the directory listing you would expect.
>
>The issue isn't with samba, but with the windows explorer not showing you
>the 'mangled' 8.3 names, or using them when they do the request across the
>wire.
>
>IMHO, anyway...
>
>Hope this helps,
>Don
>
>-----Original Message-----
>From: James Nord [mailto:teilo at cdt.luth.se]
>Sent: Wednesday, September 26, 2001 10:53 AM
>To: samba at samba.org
>Cc: MCCALL,DON (HP-USA,ex1)
>Subject: Re: Name mangling bug: was samba bug?
>
>
>So then samba *should* mangle the unix file "foo..."?
>
>/James
>
>MCCALL,DON (HP-USA,ex1) wrote:
>
>>Hi James,
>>this sounds familiar - I believe I looked at a wire trace,
>>and windows is dropping the trailing dots BEFORE it sends the 
>>request over the wire. so samba never sees the name foo..., thus
>>does not create it.
>>Don
>>-----Original Message-----
>>From: James Nord [mailto:teilo at cdt.luth.se]
>>Sent: Wednesday, September 26, 2001 9:34 AM
>>To: James Nord
>>Cc: samba at samba.org
>>Subject: Name mangling bug: was samba bug?
>>
>>
>>James Nord wrote:
>>
>>>Hi,
>>>
>>>I stumbled accross the following just now (samba 2.2.2-pre)
>>>
>>>anyone else seen this? is it known?
>>>
>>>windows explorer make a new folder "foo..." -> gets renamed to "foo" 
>>>i.e. looses the trailing three dots..
>>>
>>>from unix make a dir "foo..." you see it listed in windows explrer.
>>
>>>user at sambaserver# echo hello > foo.../hello.txt
>>>
>>>windows explorer  "foo..." dir is empty..
>>>
>>>/James
>>>
>>Okay the name choping is a windows (at least 2000) thing - tried 
>>creating documents from cmd.exe and cygwin tools, all loose the trailing 
>>"..."'s
>>Haven't tested on 9x/Dos/NT4
>>
>>But samba normally mangles illegal names? why does it not do so here?
>>
>>user at sambaserv > mkdir samba\hello\\ooo
>>
>>user at win2000> dir foo
>>H:\temp\samba>dir
>>Volume in drive H is homes_inh
>>Volume Serial Number is 1205-4BBA
>>
>>Directory of H:\temp\samba
>>
>>2001/09/26  15:29       <DIR>          .
>>2001/09/26  15:29       <DIR>          ..
>>2001/09/26  15:29       <DIR>          HELLO~O0
>>              0 File(s)              0 bytes
>>              3 Dir(s)   5 637 144 576 bytes free
>>
>>/James
>>


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